Some knots, like this trefoil, can form from vortices in a quantum fluid
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By manipulating a quantum fluid, researchers can form liquid knots that never break free. These could help us shed light on the strange quantum objects at the dawn of the universe.
when small eddies called eddies they form in a fluid, they can form loops, which can then become tangled like a knot. But while a string can form knots that cannot be untied without the help of scissors, knotted eddies in a fluid are more easily untied. They can explode…
